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Re: [PATCH v3] sched/cputime: Resync steal time when guest & host lose sync

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  Re: [PATCH v3] sched/cputime: Resync steal time when guest & host  lose sync Rik van Riel <riel@redhat.com> - 2016-08-17 04:20 +0200

#1464287 — Re: [PATCH v3] sched/cputime: Resync steal time when guest & host lose sync

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On Wed, 2016-08-17 at 10:05 +0800, Wanpeng Li wrote:

> This patch fix the regression by limiting the account_other_time()
> from 
> get_vtime_delta() to avoid underflow, and let other three call sites
> (account_other_time() and steal_account_process_time()) account
> however 
> much steal time the host told us elapsed. 
> 
> Suggested-by: Rik van Riel <riel@redhat.com> 
> Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Ingo Molnar <mingo@kernel.org>
> Cc: Peter Zijlstra <peterz@infradead.org>
> Cc: Rik van Riel <riel@redhat.com>
> Cc: Paolo Bonzini <pbonzini@redhat.com>
> Cc: Radim Krcmar <rkrcmar@redhat.com>
> Cc: Mike Galbraith <efault@gmx.de>
> Cc: Frederic Weisbecker <fweisbec@gmail.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>
> Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
> 

Reviewed-by: Rik van Riel <riel@redhat.com>

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